This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: GCSE/PRE problem
- From: "Mostafa Hagog" <MUSTAFA at il dot ibm dot com>
- To: Zdenek Dvorak <rakdver at atrey dot karlin dot mff dot cuni dot cz>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 27 May 2003 08:44:18 +0300
- Subject: Re: GCSE/PRE problem
Hi,
I have noticed that in some spec benchmarks store motion has degraded
the performance.
by enabling/disabling store motion in gcse , I noticed that twolf , gap ,
and gzip performance was degraded.
Have you seen the same results? is there a known problem which causes this?
Regards,
Mostafa Hagog
Systems and Software Department
IBM Research Lab in Haifa
e-mail: mustafa@il.ibm.com
Phone: +972 4 829-6518 Fax: +972 4 829-6116
Zdenek Dvorak
<rakdver@atrey.karlin.m To: Mostafa Hagog/Haifa/IBM@IBMIL
ff.cuni.cz> cc: gcc@gcc.gnu.org
Subject: Re: GCSE/PRE problem
05/05/2003 21:46
Hello,
> You are correct , I have changed the implementation of "pre_ins
> ert_copy_insn" function and it did worked.
btw if you did not already, could you please try to push this patch to
mainline? I believe we may be missing important share of optimization
opportunities due to this.
Zdenek